By Witkamp Marten   in Voluntas: International Journal of Voluntary and Nonprofit Organizations

ISSN:0957-8765|22|2|283-310

Springer Publishing Company ‎(2011)‎

Access to resources Favorite 22.156456

By Raven Rob P.J.M.   Verbong Geert P.J.   Schilpzand Wouter F.   Witkamp Marten J.   in Technology Analysis and Strategic Management

ISSN:1465-3990|23|10|1063-1078

Routledge Ltd‎(2011)‎

Access to resources Favorite 8.308357